Added left_sph attribute to Tasks model, and renders in Task view but not Dashboard
Displaying left_sph in Dashboard view
Create/display left_SPH working, added 12factor gem for Heroku deployment
Added right_sph to Tasks, Create flow and Dashboard/List views
Added Migrations, Serializers, Actions and Views for bilateral CYL and AXIS optical values
Added presence validations to prescription form via angular
Updated all Angular validations + Directives and various UI touchups
Homepage Image and additional navigation bar
Permit null values for 'description' in task + numerous UI updates including Footer